Home / 101,115.28-151,554.83-76,074.89

Finding the Fourth Proportional to 101,115.28, 151,554.83 and 76,074.89

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Solution

The fourth proportional to 101,115.28, 151,554.83 and 76,074.89 is: 114,023.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,115.28 : 151,554.83 = 76,074.89 : x
  2. Step 2: Convert to fraction form
    101,115.28/151,554.83 = 76,074.89/x
  3. Step 3: Cross multiply
    101,115.28x = 151,554.83 × 76,074.89
  4. Step 4: Simplify right side
    101,115.28x = 11,529,516,263.44
  5. Step 5: Solve for x
    x = 11,529,516,263.44/101,115.28
  6. Step 6: Final answer
    x = 114,023.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.